A silk scarf is in the shape of an isosceles triangle. The two equal sides of the scarf are 8cm more than twice the third side. If the perimeter of the scarf is71 cm, find the lengths of the sides of the scarf.
Answers
Answered by
5
Third side = 11cm
One of the equal sides= 30cm
Other side= 71cm - ( 11 + 30) cm
= 30cm
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Answered by
10
heya!
let us keep the third side as x
so the two other equal sides would be 2 x + 8
perimeter = 71 cm
so,
x + 2x + 8 + 2x + 8 = 71
5 x + 16= 71
5 x = 71 - 16
= x = 55/5
= x = 11
1st side = 2 x + 8 = 2* 11 + 8= 30 cm
2nd side = 2 x + 8 = 2* 11 + 8= 30 cm
3rd side = x = 11 cm
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